Mary Schapiro, chair of the Securities and Exchange Commission, announced that she will leave her position. Schapiro took her post at the SEC just after the financial crisis and is credited with helping to craft reforms to prevent future economic disasters.

Two years ago this Saturday, President Obama signed the Dodd-Frank financial reform law. Many say the bailout pulled the economy back from the brink. But the ad-hoc nature of the bailout made clear we needed better ways of responding to -- and ideally preventing -- financial crises.